Kremlin pump

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Have a used pump that was purchased used it worked for a while but now it just continues to cycle if you turn up the pressure it cycles faster but it never stops turn down the fluid pressure it just cycles slower it acts like when their is no material in the system.

I have a sata. It did the same thing. It drove me crazy.
Until I found a crack in the rubber hose between the pump and stainless pipe that I drop in the pail. It was sucking through the the crack as if there was no product in the pail.

Remove the pickup tube from the bottom of the pump. Then remove the housing above it . There is a ball inside of this housing. Nine times out of ten, there is a piece of dirt/trash keeping the ball from seating properly. There is a spring wire holding the ball in. Take the spring and ball out and clean everything well and put it back. If this does not fix it, then the rubber seal above the ball is probably busted and needs to be replaced. But almost always, it is a piece of dirt in the ball chamber. Easy fix.

If the pump has been drained of all the material it can be hard to get it to prime. Try turning the pickup hose up and holding it above the pump and pouring some thinner in with a funnel while cycling the pump. once it primes let go of the trigger and drop the pickup tube into the material.

Yes a ca tip will work great... just pull the ring off the back . I actually run the ca fine finish tips in all our pumps because they are much cheaper. When I buy tips I normally purchase about fifty+ tips for all my guys. They seem to poke around in tips trying to clear them and the kremlin tips last the same rate but cost more... I know... they shouldn't be poking around in there with the needles so hard but that's how it is.... one starts acting all crazy and I chunk it....

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